package com.itheima_04;

import java.util.Scanner;

public class StringTest05 {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        System.out.println("请输入一个字符串：");
        String line = sc.nextLine();
        System.out.println(reverse(line));
    }

    public static String reverse(String s) {
       String ss = "";

       for (int i = s.length() - 1; i >= 0; i-- ) {
           ss += s.charAt(i);
       }

       return ss;
    }

    public static String reverseBySB(String s) {
        return new StringBuilder(s).reverse().toString();
    }
}
